### Origin of any discrepancy between the two measurements

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The resistive-wire thermometer is then calibrated against a Hg thermometer. The resistance in terms of the temperature t on the Celsius scale can be optimally fitted by the expression R = R0(1 + alpha t + beta t2) where alpha = 3.80 Times 10-3 degree C-1 and beta = -3.00 Times 10-6 degree C-2. Which temperature t would the Hg thermometer measure at the probe? Explain the origin of any discrepancy between the two measurements.

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